EP1606442B1 - Weaving machine, particularly a ribbon weaving machine - Google Patents

Weaving machine, particularly a ribbon weaving machine Download PDF

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Publication number
EP1606442B1
EP1606442B1 EP04717538A EP04717538A EP1606442B1 EP 1606442 B1 EP1606442 B1 EP 1606442B1 EP 04717538 A EP04717538 A EP 04717538A EP 04717538 A EP04717538 A EP 04717538A EP 1606442 B1 EP1606442 B1 EP 1606442B1
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EP
European Patent Office
Prior art keywords
weaving machine
web
beating
fabric
edge
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP04717538A
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German (de)
French (fr)
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EP1606442A1 (en
Inventor
Francisco Speich
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Textilma AG
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Textilma AG
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Filing date
Publication date
Application filed by Textilma AG filed Critical Textilma AG
Publication of EP1606442A1 publication Critical patent/EP1606442A1/en
Application granted granted Critical
Publication of EP1606442B1 publication Critical patent/EP1606442B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • DTEXTILES; PAPER
    • D03WEAVING
    • D03JAUXILIARY WEAVING APPARATUS; WEAVERS' TOOLS; SHUTTLES
    • D03J1/00Auxiliary apparatus combined with or associated with looms
    • DTEXTILES; PAPER
    • D03WEAVING
    • D03DWOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D35/00Smallware looms, i.e. looms for weaving ribbons or other narrow fabrics
    • DTEXTILES; PAPER
    • D03WEAVING
    • D03DWOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D49/00Details or constructional features not specially adapted for looms of a particular type
    • D03D49/04Control of the tension in warp or cloth
    • D03D49/22Back rests; Lease rods; Brest beams

Definitions

  • the invention relates to a loom, in particular a ribbon loom according to the preamble of claim 1.
  • a loom of the type mentioned is known for example from GB 316 400, while a freewheel device is arranged on the fabric take-off.
  • a freewheel device is arranged on the fabric take-off.
  • Vorweben the stable position of the warp and weft threads in the fabric is not immediately at the stop of the last weft thread at the stop edge, but only a few shots later.
  • the last weft inserted removed from the stable fabric zone after being closest to the stable zone during the weft stop. But also the last registered weft thread in the stable zone leads due to the elasticity of the warp and tissue during firing stroke movement in one direction and after successful firing stroke again in the other direction.
  • Vortuch The total displacement of the damaged weft thread is visible as Geweberandschul and is referred to as Vortuch or Vorweben. Preweaving is greater in dense tissues than in lightly set tissues, since dense tissues require a greater shot-stop force. However, this Vorweben also depends on the distance of the fabric take-off from the stop edge, since at a greater distance, the elasticity of the woven fabric greatly affects the size of Vorwebens. This makes the production of dense tissues difficult.
  • the object of the invention is to improve a weaving machine, in particular ribbon loom to the effect that the Vorweben reduced and a denser tissue can be produced.
  • the freewheel device is assigned to the stop edge, it is directly effective at the stop edge and although it releases the trigger path, however, blocks a reset of the web in the opposite direction, this can be the Reduce pre-weaving and create a denser fabric.
  • the freewheel device can be designed very diverse. According to claim 2, the freewheel device on a guide roller with a backstop. This freewheel device may be assigned according to claim 3, a second guide roller preferably upstream to improve the guidance of the web around the first guide roller and to prevent slippage of the web. Conveniently, the second guide roller according to claim 4 is also provided with a backstop. Particularly expedient training is according to claim 5, wherein the deflection roller provided with the deflection roller has a Ruschthemmende surface at least makes it difficult to slippage of the web.
  • the freewheel device is preferably associated with a goods holder or a spreader, which is arranged after the stop edge.
  • the freewheel device for weaving machines can be suitable for the production of wide webs, it unfolds its advantageous effect, especially in ribbon looms for the production of narrow webs such as tapes, in which the Vorweben is particularly pronounced and therefore the production of dense webs is difficult.
  • the weaving machine shown schematically in the figure which is preferably a ribbon loom, has a shed forming device 2, are opened at the heddles 4 controlled warp threads 6 to a shed 8.
  • a weft insertion device not shown carries a weft thread 10 in the shed 8 a.
  • the weft thread 10 is struck by means of a reed 12 at the stop edge 14 of a web 16 to be produced.
  • the web 16 is subtracted from a fabric withdrawal 18.
  • the loom has at least one freewheel device 20 over which the web 16 is guided and which releases the trigger path and blocks a reset of the web in the opposite direction.
  • This freewheel device is mounted on both sides of the web on frame parts 21 and arranged as close to the stop edge 14.
  • the loom on a fabric holder 22 which is disposed near the stop edge 14 and the freewheel device 20 is arranged downstream.
  • the freewheel device 20 includes a first guide roller 24 which is provided with a backstop 26.
  • This first guide roller 24 is associated with a second guide roller 28 which is disposed between the goods holder 22 and the first guide roller 24, and over which the web 16 is meandering to improve the wrap of the web on the first guide roller 24 and slipping prevent.
  • the surface 30 of the first guide roller 24 is designed to be slip-resistant.
  • the surface may be roughened or provided with a slip-resistant coating.
  • the second guide roller 28 is also equipped with a backstop. Backstops are known in large numbers, for example, as a ratchet mechanism, freewheel or overrunning clutches, Klemmrichtgesperre or the like.
  • the backstop 26 is preferably designed as a clamping roller freewheel and preferably has pinch rollers 32 which cooperate in a known manner with not shown clamping ramps on the inside of the sleeve 34 of the guide roller 24.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Auxiliary Weaving Apparatuses, Weavers' Tools, And Shuttles (AREA)
  • Braiding, Manufacturing Of Bobbin-Net Or Lace, And Manufacturing Of Nets By Knotting (AREA)

Abstract

The weaving machine is equipped with a shedding device (2), with a weft insertion device, with a reed (12) for beating up a weft yarn (10) on a beating up edge (14) of the web of fabric (16), and with a fabric take-off (18). In order to improve the weaving process and to reduce the pre-weaving, the fabric web (16) is guided via at least one free-wheeling device (20), which clears the take-off path and prevents the web of fabric (16) from moving backwards in the opposite direction. The free-wheeling device (20) is assigned to the beating up edge (14).

Description

Technisches GebietTechnical area

Die Erfindung betrifft eine Webmaschine, insbesondere Bandwebmaschine gemäss Oberbegriff des Anspruches 1.The invention relates to a loom, in particular a ribbon loom according to the preamble of claim 1.

Stand der TechnikState of the art

Eine Webmaschine der eingangs genannten Art ist beispielsweise aus der GB 316 400 bekannt, dabei ist eine Freilaufeinrichtung am Warenabzug angeordnet. Dadurch kann zwar das Zurückrutschen der Warenbahn am Warenabzug verhindert werden, jedoch nicht das so genannte Vorweben. Die stabile Lage der Kett- und Schussfäden im Gewebe stellt sich nicht unmittelbar beim Anschlag des letzten Schussfadens an der Anschlagkante ein, sondern erst einige Schüsse später. Der zuletzt eingetragene Schussfaden entfernt sich von der stabilen Gewebezone nachdem er beim Schussanschlag der stabilen Zone am nächsten war. Aber auch der zuletzt eingetragene Schussfaden in der stabilen Zone führt in Folge der Elastizität von Kette und Gewebe beim Schussanschlag eine Bewegung in der einen Richtung und nach erfolgtem Schussanschlag wieder in die andere Richtung aus. Die Gesamtverschiebung des angeschlagenen Schussfadens ist als Geweberandbewegung sichtbar und wird als Vortuch oder Vorweben bezeichnet. Das Vorweben ist bei dichten Geweben grösser als bei leicht eingestellten Geweben, da dichte Gewebe eine grössere Schussanschlagkraft erfordern. Dieses Vorweben hängt aber auch vom Abstand des Warenabzuges zur Anschlagkante ab, da sich bei grösserem Abstand die Elastizität der gewebten Warenbahn stark auf die Grösse des Vorwebens auswirkt. Dadurch ist die Herstellung dichter Gewebe schwierig.A loom of the type mentioned is known for example from GB 316 400, while a freewheel device is arranged on the fabric take-off. As a result, while the slipping back of the web on the fabric take-off can be prevented, but not the so-called Vorweben. The stable position of the warp and weft threads in the fabric is not immediately at the stop of the last weft thread at the stop edge, but only a few shots later. The last weft inserted removed from the stable fabric zone after being closest to the stable zone during the weft stop. But also the last registered weft thread in the stable zone leads due to the elasticity of the warp and tissue during firing stroke movement in one direction and after successful firing stroke again in the other direction. The total displacement of the damaged weft thread is visible as Geweberandbewegung and is referred to as Vortuch or Vorweben. Preweaving is greater in dense tissues than in lightly set tissues, since dense tissues require a greater shot-stop force. However, this Vorweben also depends on the distance of the fabric take-off from the stop edge, since at a greater distance, the elasticity of the woven fabric greatly affects the size of Vorwebens. This makes the production of dense tissues difficult.

Darstellung der ErfindungPresentation of the invention

Aufgabe der Erfindung ist es, eine Webmaschine, insbesondere Bandwebmaschine dahingehend zu verbessern, dass das Vorweben verringert und ein dichteres Gewebe herstellbar ist.The object of the invention is to improve a weaving machine, in particular ribbon loom to the effect that the Vorweben reduced and a denser tissue can be produced.

Die Aufgabe wird erfindungsgemäss gelöst durch die kennzeichnenden Merkmale des Anspruches 1. Dadurch, dass die Freilaufeinrichtung der Anschlagkante zugeordnet ist, wird sie unmittelbar an der Anschlagkante wirksam und gibt zwar den Abzugsweg frei, sperrt hingegen ein Zurücksetzen der Warenbahn in Gegenrichtung, dadurch lässt sich das Vorweben verringern und ein dichteres Gewebe herstellen.The fact that the freewheel device is assigned to the stop edge, it is directly effective at the stop edge and although it releases the trigger path, however, blocks a reset of the web in the opposite direction, this can be the Reduce pre-weaving and create a denser fabric.

Vorteilhafte Ausgestaltungen einer solchen Webmaschine sind in den Ansprüchen 2 bis 6 angegeben.Advantageous embodiments of such a loom are specified in claims 2 to 6.

Die Freilaufeinrichtung kann sehr vielfältig ausgestaltet sein. Gemäss Anspruch 2 weist die Freilaufeinrichtung eine Umlenkwalze mit einer Rücklaufsperre auf. Dieser Freilaufeinrichtung kann gemäss Anspruch 3 eine zweite Umlenkwalze zugeordnet vorzugsweise vorgelagert sein, um die Führung der Warenbahn um die erste Umlenkwalze zu verbessern und ein Durchrutschen der Warenbahn zu vermeiden. Zweckmässigerweise ist die zweite Umlenkwalze gemäss Anspruch 4 ebenfalls mit einer Rücklaufsperre versehen. Besonders zweckmässig ist die Ausbildung nach Anspruch 5, wonach die mit der Rücklaufsperre versehene Umlenkwalze eine ruschthemmende Oberfläche aufweist, die ein Durchrutschen der Warenbahn mindestens erschwert.The freewheel device can be designed very diverse. According to claim 2, the freewheel device on a guide roller with a backstop. This freewheel device may be assigned according to claim 3, a second guide roller preferably upstream to improve the guidance of the web around the first guide roller and to prevent slippage of the web. Conveniently, the second guide roller according to claim 4 is also provided with a backstop. Particularly expedient training is according to claim 5, wherein the deflection roller provided with the deflection roller has a Ruschthemmende surface at least makes it difficult to slippage of the web.

Gemäss Anspruch 6 ist die Freilaufeinrichtung vorzugsweise einem Warenhalter oder einem Breithalter zugeordnet, der nach der Anschlagkante angeordnet ist.According to claim 6, the freewheel device is preferably associated with a goods holder or a spreader, which is arranged after the stop edge.

Obwohl die Freilaufeinrichtung für Webmaschinen zur Herstellung von breiten Warenbahnen geeignet sein kann entfaltet sie ihre vorteilhafte Wirkung insbesondere bei Bandwebmaschinen zur Herstellung von schmalen Warenbahnen wie Bändern, bei denen das Vorweben besonders ausgeprägt ist und deshalb die Herstellung dichter Warenbahnen schwierig ist.Although the freewheel device for weaving machines can be suitable for the production of wide webs, it unfolds its advantageous effect, especially in ribbon looms for the production of narrow webs such as tapes, in which the Vorweben is particularly pronounced and therefore the production of dense webs is difficult.

Kurze Beschreibung der ZeichnungenBrief description of the drawings

Ausführungsbeispiele der Erfindung werden nachfolgend anhand einer Zeichnung näher beschrieben, in der die einzige Figur den schematischen Aufbau einer Webmaschine in Seitenansicht zeigt.Embodiments of the invention will be described in more detail with reference to a drawing, in which the single figure shows the schematic structure of a loom in side view.

Wege zur Ausführung der ErfindungWays to carry out the invention

Die in der Figur schematisch gezeigte Webmaschine, die vorzugsweise eine Bandwebmaschine ist, weist eine Fachbildevorrichtung 2 auf, bei der über Litzen 4 gesteuerte Kettfäden 6 zu einem Webfach 8 geöffnet werden. Eine nicht näher dargestellte Schusseintragvorrichtung trägt einen Schussfaden 10 in das Webfach 8 ein. Der Schussfaden 10 wird mittels eines Webblattes 12 an der Anschlagkante 14 einer herzustellenden Warenbahn 16 angeschlagen. Die Warenbahn 16 wird von einem Warenabzug 18 abgezogen.The weaving machine shown schematically in the figure, which is preferably a ribbon loom, has a shed forming device 2, are opened at the heddles 4 controlled warp threads 6 to a shed 8. A weft insertion device not shown carries a weft thread 10 in the shed 8 a. The weft thread 10 is struck by means of a reed 12 at the stop edge 14 of a web 16 to be produced. The web 16 is subtracted from a fabric withdrawal 18.

Die Webmaschine weist mindestens eine Freilaufeinrichtung 20 auf, über die die Warenbahn 16 geführt ist und welche den Abzugsweg freigibt und ein Zurücksetzen der Warenbahn in Gegenrichtung sperrt. Diese Freilaufeinrichtung ist beidseits der Warenbahn an Gestellteilen 21 gelagert und möglichst nahe an der Anschlagkante 14 angeordnet. Im vorliegenden Beispiel weist die Webmaschine einen Warenhalter 22 auf, der nahe der Anschlagkante 14 angeordnet ist und dem die Freilaufeinrichtung 20 nachgeordnet ist.The loom has at least one freewheel device 20 over which the web 16 is guided and which releases the trigger path and blocks a reset of the web in the opposite direction. This freewheel device is mounted on both sides of the web on frame parts 21 and arranged as close to the stop edge 14. In the present example, the loom on a fabric holder 22 which is disposed near the stop edge 14 and the freewheel device 20 is arranged downstream.

Die Freilaufeinrichtung 20 enthält eine erste Umlenkwalze 24, die mit einer Rücklaufsperre 26 versehen ist. Dieser ersten Umlenkwalze 24 ist eine zweite Umlenkwalze 28 zugeordnet, die zwischen dem Warenhalter 22 und der ersten Umlenkwalze 24 angeordnet ist, und über die die Warenbahn 16 mäanderförmig geführt ist, um die Umschlingung der Warenbahn an der ersten Umlenkwalze 24 zu verbessern und ein Durchrutschen zu verhindern. Hierzu ist es weiter von Vorteil, wenn die Oberfläche 30 der ersten Umlenkwalze 24 rutschhemmend ausgebildet ist. Hierzu kann die Oberfläche aufgeraut oder mit einem rutschhemmenden Belag versehen sein. Von Vorteil ist es, wenn die zweite Umlenkwalze 28 ebenfalls mit einer Rücklaufsperre ausgestattet ist. Rücklaufsperren sind in grosser Zahl bekannt, so beispielsweise als Klinkengesperre, Freilauf- oder Überhol-Kupplungen, Klemmrichtgesperre oder dergleichen. Die Rücklaufsperre 26 ist vorzugsweise als Klemmrollenfreilauf ausgebildet und weist vorzugsweise Klemmrollen 32 auf, die in bekannter Weise mit nicht näher dargestellten Klemmrampen auf der Innenseite der Laufhülse 34 der Umlenkwalze 24 zusammenwirken.The freewheel device 20 includes a first guide roller 24 which is provided with a backstop 26. This first guide roller 24 is associated with a second guide roller 28 which is disposed between the goods holder 22 and the first guide roller 24, and over which the web 16 is meandering to improve the wrap of the web on the first guide roller 24 and slipping prevent. For this purpose, it is further advantageous if the surface 30 of the first guide roller 24 is designed to be slip-resistant. For this purpose, the surface may be roughened or provided with a slip-resistant coating. It is advantageous if the second guide roller 28 is also equipped with a backstop. Backstops are known in large numbers, for example, as a ratchet mechanism, freewheel or overrunning clutches, Klemmrichtgesperre or the like. The backstop 26 is preferably designed as a clamping roller freewheel and preferably has pinch rollers 32 which cooperate in a known manner with not shown clamping ramps on the inside of the sleeve 34 of the guide roller 24.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

22
FachbildevorrichtungShedding mechanism
44
Litzebraid
66
Kettfadenwarp
88th
Webfachshed
1010
Schussfadenweft
1212
Webblattreed
1414
Anschlagkantestop edge
1616
Warenbahnweb
1818
WarenabzugFabric take
2020
FreilaufeinrichtungFreewheel device
2121
Gestellteilframe part
2222
Warenhaltercloth holder
2424
erste Umlenkwalzefirst deflecting roller
2626
RücklaufsperreBackstop
2828
zweite Umlenkwalzesecond guide roller
3030
Oberflächesurface
3232
Klemmrollenclamping rollers
3434
Laufhülserunning sleeve

Claims (6)

  1. A weaving machine, particularly a ribbon weaving machine, with a shedding device (2), with a weft insertion device, with a reed (12) for beating up a weft thread (10) at a beating-up edge (14) of the cloth web (16), and with a cloth take-up (18), the cloth web (16) being guided by at least one freewheel device (20) which enables the take-up travel and blocks a return of the cloth web (16) in the opposite direction, characterized in that the freewheel device (20) is assigned to the beating-up edge (14).
  2. The weaving machine as claimed in claim 1, characterized in that the freewheel device (20) has a deflecting roller (24) with a nonreturn device (26).
  3. The weaving machine as claimed in claim 2, characterized in that the deflecting roller (24) is assigned, preferably preceded by, a second deflecting roller (28).
  4. The weaving machine as claimed in claim 3, characterized in that the second deflecting roller (28) is likewise provided with a nonreturn device.
  5. The weaving machine as claimed in one of claims 2 to 4, characterized in that the deflecting roller (24, 28) provided with the nonreturn device (26) has a slip-inhibiting surface (30).
  6. The weaving machine as claimed in one of claims 1 to 5, characterized in that, downstream of the beating-up edge (14), it has, for the cloth web (16), a cloth holder (22) or spreader to which the freewheel device (20) is assigned.
EP04717538A 2003-03-21 2004-03-05 Weaving machine, particularly a ribbon weaving machine Expired - Lifetime EP1606442B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH4772003 2003-03-21
CH477032003 2003-03-21
PCT/CH2004/000132 WO2004083508A1 (en) 2003-03-21 2004-03-05 Weaving machine, particularly a ribbon weaving machine

Publications (2)

Publication Number Publication Date
EP1606442A1 EP1606442A1 (en) 2005-12-21
EP1606442B1 true EP1606442B1 (en) 2006-09-06

Family

ID=32996988

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04717538A Expired - Lifetime EP1606442B1 (en) 2003-03-21 2004-03-05 Weaving machine, particularly a ribbon weaving machine

Country Status (7)

Country Link
EP (1) EP1606442B1 (en)
CN (1) CN100572629C (en)
AT (1) ATE338839T1 (en)
DE (1) DE502004001418D1 (en)
HK (1) HK1086603A1 (en)
RU (1) RU2337188C2 (en)
WO (1) WO2004083508A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101285233B (en) * 2008-05-12 2010-06-02 宁波萌恒工贸有限公司 Spindle weaving machine for weaving wave belt
EP2180092B1 (en) * 2008-10-24 2012-11-21 Groz-Beckert KG Temple with clamping and unclamping device
CN111519319B (en) * 2020-04-30 2021-04-30 江南大学 Weft yarn introducing device, loom and method for assisting high-performance fabric weaving

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US24306A (en) * 1859-06-07 Loom-temple
GB316400A (en) * 1928-06-29 1929-08-01 George Woodhead Improvements appertaining to the taking-up of the woven fabrics in looms
CH457316A (en) * 1966-05-27 1968-05-31 Sulzer Ag Loom
DE2302949C2 (en) * 1973-01-22 1975-02-20 Ruthard 5630 Remscheid Marowsky Loom for making ribbons
DE19713357A1 (en) * 1996-12-23 1998-06-25 Cramer Anton Gmbh Co Kg Loom temple for high, medium and low weft densities

Also Published As

Publication number Publication date
CN1764748A (en) 2006-04-26
EP1606442A1 (en) 2005-12-21
DE502004001418D1 (en) 2006-10-19
RU2005132388A (en) 2007-04-27
HK1086603A1 (en) 2006-09-22
CN100572629C (en) 2009-12-23
WO2004083508A1 (en) 2004-09-30
ATE338839T1 (en) 2006-09-15
RU2337188C2 (en) 2008-10-27

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